Hi Soso I heard if you get your period you grow fast

Actually, it is usually the other way around: you do your fastest growing before your first period arrives, not after.

During puberty, your body goes through a major growth spurt where you shoot up really quickly. That peak stretch usually happens first, and then your first period often comes about a year after the fastest growing, and that varies a lot. Once your periods actually start, your growth usually begins to slow down, though most people still grow a little bit taller for a couple of years after that.

There is no exact timeline for when puberty happens or when your period shows up. A first period can come anywhere from about 9 to 15, sometimes later, and the average is around 12. Your body does things in its own order, but the general signs that things are moving along include:

• Breasts starting to grow, which is usually the first sign, and the period often comes about 2 years later, and that varies a lot
• Pubic and underarm hair appearing, usually shortly after breasts start, though getting hair first is totally normal too
• A big growth spurt where you feel like your pants are suddenly too short
• Clear or white discharge in your underwear, which can start some months before (if it changes colour, smells bad or itches, tell a grown-up)

Everyone grows at their own pace, so you do not need to compare your height or your timeline to your friends. A period before 9 (or any bleeding or pink or brown spotting before 9), no period by 15, or no breast growth or other puberty signs by 13 means telling a grown-up so a doctor can check. Breast or hair growth before 8 is worth a check too, and it is usually nothing to worry about.

btw if you want to see which signs your body is already showing, there's a quiz on this site: how close is my first period?. It takes about a minute.